What flux should be used.
How to solder zinc sheet metal.
Learn the basics of soldering two pieces of metal together.
This how to video details the method of touch up and repair using zinc based solder.
Feel free to ask me any questions you have in the comments.
I try to answer all questions in a ti.
Soldering is done with a zinc based alloy in either stick or powder form.
Any advise of soldering copper sheets to stainless steel sheets.
Here is a helpful video giving you a quick rough how to on solder grinding fluxing zinc.